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On the convergence of the Hegselmann-Krause system

Published: 09 January 2013 Publication History

Abstract

We study convergence of the following discrete-time non-linear dynamical system: $n$ agents are located in Rd and at every time step, each moves synchronously to the average location of all agents within a unit distance of it. This popularly studied system was introduced by Krause to model the dynamics of opinion formation and is often referred to as the Hegselmann-Krause model. We prove the first polynomial time bound for the convergence of this system in arbitrary dimensions. This improves on the bound of nO(n) resulting from a more general theorem of Chazelle [4]. Also, we show a quadratic lower bound and improve the upper bound for one-dimensional systems to O(n3).

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V. D. Blondel, J. M. Hendricx, and J. N. Tsitsiklis. On Krause's multi-agent consensus model with state-dependent connectivity. IEEE Transactions on Automatic Control, 54(11), Nov. 2009.
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  • (2024)Convergence, Consensus, and Dissensus in the Weighted-Median Opinion DynamicsIEEE Transactions on Automatic Control10.1109/TAC.2024.337675269:10(6700-6714)Online publication date: Oct-2024
  • (2024)Asynchronous opinion dynamics in social networksDistributed Computing10.1007/s00446-024-00467-337:3(207-224)Online publication date: 26-Apr-2024
  • (2023)Distributed Averaging in Opinion DynamicsProceedings of the 2023 ACM Symposium on Principles of Distributed Computing10.1145/3583668.3594593(211-221)Online publication date: 19-Jun-2023
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    cover image ACM Conferences
    ITCS '13: Proceedings of the 4th conference on Innovations in Theoretical Computer Science
    January 2013
    594 pages
    ISBN:9781450318594
    DOI:10.1145/2422436
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    Published: 09 January 2013

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    Author Tags

    1. convergence
    2. hegselmann-krause system
    3. opinion dynamics

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    ITCS '13: Innovations in Theoretical Computer Science
    January 9 - 12, 2013
    California, Berkeley, USA

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    View all
    • (2024)Convergence, Consensus, and Dissensus in the Weighted-Median Opinion DynamicsIEEE Transactions on Automatic Control10.1109/TAC.2024.337675269:10(6700-6714)Online publication date: Oct-2024
    • (2024)Asynchronous opinion dynamics in social networksDistributed Computing10.1007/s00446-024-00467-337:3(207-224)Online publication date: 26-Apr-2024
    • (2023)Distributed Averaging in Opinion DynamicsProceedings of the 2023 ACM Symposium on Principles of Distributed Computing10.1145/3583668.3594593(211-221)Online publication date: 19-Jun-2023
    • (2023)Analyzing the effects of confidence thresholds on opinion clustering in homogeneous Hegselmann–Krause models2023 31st Mediterranean Conference on Control and Automation (MED)10.1109/MED59994.2023.10185838(587-592)Online publication date: 26-Jun-2023
    • (2023)A Resource Allocation Algorithm for Formation Control of Connected VehiclesIEEE Control Systems Letters10.1109/LCSYS.2022.31878247(307-312)Online publication date: 2023
    • (2023)Distributed algorithms from arboreal ants for the shortest path problemProceedings of the National Academy of Sciences10.1073/pnas.2207959120120:6Online publication date: 30-Jan-2023
    • (2023)Consensus for Hegselmann–Krause type models with time variable time delaysMathematical Methods in the Applied Sciences10.1002/mma.959946:18(18916-18934)Online publication date: 2-Aug-2023
    • (2022)Mixed Hegselmann-Krause Dynamics ⅡDiscrete and Continuous Dynamical Systems - B10.3934/dcdsb.2022200(0-0)Online publication date: 2022
    • (2022)Opinion Dynamics with Higher-Order Bounded ConfidenceEntropy10.3390/e2409130024:9(1300)Online publication date: 14-Sep-2022
    • (2022)On the Convergence Properties of Social Hegselmann–Krause DynamicsIEEE Transactions on Automatic Control10.1109/TAC.2021.305274867:2(589-604)Online publication date: Feb-2022
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